(CW: Transformation, Mental changes) Note: Based on the "Not Your Cinderella" TG sequence by Escafa. https://www.deviantart.com/escafa/gallery/46464857/not-your-cinderella

After being forced into a ragged old dress as a prank by your rather mean-spirited, sexist peers, you come face-to-face with a fairy godmother- and unfortunately(?) for you, she's quite convinced the solution to all your problems is to transform you into a beautiful princess...

(Update: Tweaked personality to improve narration.)